<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .div1 {
            width: 300px;
            height: 200px;
            border-width: 5px;
            border-style: solid;
            border-color: blue;
        }

        .div2 {
            width: 300px;
            height: 200px;
            border-width: 5px;
            border-style: dashed;
            border-color: red;
        }

        .div3 {
            width: 300px;
            height: 200px;
            border-width: 5px;
            border-style: dotted;
            border-color: green;
        }
    </style>
</head>

<body>
    <div class="div1"></div>
    <div class="div2"></div>
    <div class="div3"></div>
</body>

</html>